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我有一个基于的嵌套关联模型

Project=>ProjectDocument=>ProjectDocumentSection=>ProjectDocumentSectionVariable=>Codeset=>Code

我正在使用可包含的行为来获取包含这些元素的特定数组（对于单个项目）。

我已经在它们各自的模型中为这些模型建立了关联。

使用 foreach 我可以查询所有数据，包括ProjectDocumentSectionVariable level.

但是，一旦我尝试进入 Codeset 级别，就会出现错误。

相关代码是：

foreach ($project['ProjectDocument'] as $project_document): 
if ($project_document['document_type'] == 1) 
{
    foreach ($project_document['ProjectDocumentSection'] as $project_document_section): 
        echo "<h4><a href=\"P4\">" .  $project_document_section['title']. "</a></h4><div><table><th>Variable</th><th>Full text</th><th>Type</th><th>Format</th><th>Codeset</th>" ;
        foreach ($project_document_section['ProjectDocumentSectionVariable'] as $project_document_section_var):
            echo "<tr><td>" . $project_document_section_var['variable_name'] 
                            . "</td><td>".$project_document_section_var['variable_description'] 
                            . "</td><td>".$project_document_section_var['variable_type'] 
                            ."</td><td>".$project_document_section_var['variable_format'] 
                            ."</td><td>".$project_document_section_var['codeset_id'] ;
            foreach($project_document_section_var['Codeset'] as $codeset):
                foreach($codeset['Code'] as $pcode):
                    echo $pcode['codevalue'].", ";
                endforeach;
            endforeach;
            echo "</td></tr>";
        endforeach;
        echo "</table></div>";
    endforeach;

}

  endforeach;

foreach()但我得到非法字符串偏移“代码”，并且在回显行提供了无效参数$pcode['codevalue'].", ";

我查看了数组$project_document_section_variable，我认为代码集数组存在问题，但我无法弄清楚它为什么会这样做。

以下是数组的一些输出示例$project_document_section_variable：

array(
'id' => '32',
'project_id' => '05a',
'project_document_id' => '3',
'project_document_section_id' => '2',
'variable_id' => '2',
'variable_name' => 'Respondent Education',
'variable_description' => 'B1. What is your highest level of education?',
'variable_type' => 'Categorical',
'variable_format' => 'Quantitive',
'codeset_id' => '43',
'Codeset' => array(
    'id' => '43',
    'title' => 'Educational level',
    'Code' => array(
        (int) 0 => array(
            'id' => '96',
            'codeset_id' => '43',
            'codevalue' => '1',
            'title' => 'No education'
        ),
        (int) 1 => array(
            'id' => '97',
            'codeset_id' => '43',
            'codevalue' => '2',
            'title' => 'Primary'
        ),
        (int) 2 => array(
            'id' => '98',
            'codeset_id' => '43',
            'codevalue' => '3',
            'title' => 'Secondary'
        ),
        (int) 3 => array(
            'id' => '99',
            'codeset_id' => '43',
            'codevalue' => '4',
            'title' => 'Tertiary'
        ),
        (int) 4 => array(
            'id' => '100',
            'codeset_id' => '43',
            'codevalue' => '7',
            'title' => 'Other (describe)'
        ),
        (int) 5 => array(
            'id' => '101',
            'codeset_id' => '43',
            'codevalue' => '8',
            'title' => 'Refuses to answer'
        ),
        (int) 6 => array(
            'id' => '102',
            'codeset_id' => '43',
            'codevalue' => '9',
            'title' => 'Don’t know'
        )
    )
)
 )

您可能会注意到代码集数组没有(int) 0. 也许这是因为只为代码集返回了一个数组（这是正确的，每个数组project_document_section_variable只有一个关联的代码集。

我在这里遗漏了什么明显的东西吗？

4

1 回答 1

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这一行 ->foreach($project_document_section_var['Codeset'] as $codeset):正在使 php assign ['id']、['title']和['Code']to $codeset。

此行 ->foreach($codeset['Code'] as $pcode):正在使 php 查找['id']['Code'],['title']['Code']和['Code']['Code']不存在的并引发错误。

尝试替换这个：

        foreach($project_document_section_var['Codeset'] as $codeset):
            foreach($codeset['Code'] as $pcode):
                echo $pcode['codevalue'].", ";
            endforeach;
        endforeach;

为了这：

        foreach($project_document_section_var['Codeset']['Code'] as $pcode):
             echo $pcode['codevalue'].", ";
        endforeach;
于 2012-09-10T12:54:14.543 回答